e*thirteen Helix Race Cassette - 12-Speed 13-52t Gray MFPN=101183 SRX hubs are easily serviceable

SRX hubs are easily serviceable and offer 90 points of engagement

Includes 4-piece spacer kit and 2xM10 bolts with serrated caps

DWR coated ripstop panels and snap chest pockets

• Fingerprint resistant

Ring Position/Type Chain Retaining Single Ring Tooth Count 40 Round or Oval Oval Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 6 Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 141/148 Boost Hubs Chainline/Hub Compatibility 150/157 DH Hubs Chainline/Hub Compatibility 157 Super Boost Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount SRAM

e*thirteen Helix Race Cassette - 12-Speed 13-52t Gray MFPN=101183 SRX hubs are easily serviceablee*thirteen Helix Race Cassette 12 Speed 13 52t Gray. The e*thirteen Helix Race 12 speed 13 52t cassette features close ratio gearing specifically engineered for steep terrain where climbing time and shift frequency is high and descents are gravity driven. By placing more gears where riders spend the majority of the time they can optimize cadence and torque for improved climbing efficiency with smoother shifts under load for both analog and eBikes.